Abstract
The purpose of this study was to develop and validate two statistical indices of distinctness (intensity) of cognitive preference score patterns. The distinctness of cognitive preferences varied widely across individuals, and the proportion of individuals with a distinct preference varied widely across different populations. Distinct cognitive preference patterns were shown to be more stable across time and across different methods of measuring cognitive preference than less distinct patterns. The distinctness variable was shown to be a useful tool in cognitive preference research, adding a dimension to the cognitive preference construct.